Type-writing machine.



F. W. SIGKLBS.

TYPE WRITING MACHINE; APPLICATION npnn 31:13.8, 190a.

Patented July 13, 1909.

AJTOHZVE 2e 1 INVENTOR: W 91 $2042, BI

mezw N TED Salar es.

PATENT oFFIfoE.

. FRANK w. .SIOQKLES, or naa'rroanconnroriour, assleaon T nnnnnwoon 'rrrnwa'rrna COMPANY, on NEW YORK, N. Y'.-, A CORPORATION or NEW messy.

'rrrnwarrme lawman To aZZ 'wh or/t t't concern: e

Beit'know'nthat I, FRANK SI KLES, a

citizen of the. United States, residing in Hartford, in the county of Hartford .and

- locking the pressure Writing Machines,

State of Connecticut, have invented certainv new and useful Im roveinents in ;T pe- 0 which the following is a specification.

.T his invention relates to the paper-feeding devices of ty "ewriting machines, in which the paper is ed around theplaten by means of spring pressed rollers running;

thereon. I e The object of the invention is to provide efficient and simple means 'formoving and rollers out of :engagement- With the platen.

.' I pivot a finger lever'upon the platen -fframe,having an arm engageable' .With a camedge'fo'rm'ed on a second lever, the latter a lsjo pivoted upon the platen frame and rollers'from-the platen. The cam edge co'epconnectedto a rock-shaft which releases the erates With thefinger lever tolock the latter and Qhencethe pressure rolls in abnormal or release positions."

" In the accompanying drawings, Figure 1 "is-a fragmentary fron't elevationof a platen :frame, platen and paper-feeding mechanism including improvements -applied thereto. Fig. 2 is a plan View of parts shown inFig;

1. Fig. 3 is-an end view'of ,a'typeWri-ter platen, showing the'parts in normal posi tions. (Fig. 4.:isa vieWsimila-r tov Fig. 3 but with the key depressed and rollers released and locked out bf engagement- 'Witl1 the platen.

i The platen 1 is mounted onlan axle 2'journaled in the ends .3 of the platen frame. A tie'rod 4:, connecting the ends of the platen frame, carries spring-pressed swinging .arms 5, (3, in which are ournaled shafts 7, 8, Whereon are mounted rollers 9, 10, pressed by said arms against the platen. A rockshaft 11 having roll-releasing cams 12 thereon is .journaled in brackets 13 secured to the rod 4.; I

To releasethe rods, I pivot upon the platen frame a lever 14, having a cam edge 15, and bent reflexly as at 16, to'form an ear 17, connected to rock-shaft 11 by .a link 18,.pivoted to a crank 19 upon the rockshaft. Also pivoted upon the platen frame I Specification oil-Letters Patent. Application and Febr ary ,8, was. serial No. 414,901.

IPatentedJuly 13, mos.

isa finger'lever 20 having an arm 21 to engagethe cam edge 15 of lever 14.

In'Fig. 3 the parts are in normal positionsu TWhenthe. finger lever '20 is depressed, the arm 21 bears againstthe cam edge? 15 of the lever ll, moving the. same from the Fig. 3 to the Fig. 4: position, giving an upward pull to link 18, rocking shaft 11,. and causing cams 12't0bear against horns 22 of arms 5, 6, thereby throwing the rollers out ofengagement with the platen.

The finger lever 20 is depressed sufficiently to cairry'the arm, 21" beyond the dead centerl, thereby wedging the lever 14 in its uppermost or abnormal position, or auto 'matically lockingv said lever and the pressure rolls in release positions. The downward porting bracket 23.

. movementof-lever 20 is limited by its sup- To return the parts to normal positions, the finger lever 2011s ralsed, releasing the lever l t and allowing the sameto drop,

thereby rocking 'the shaft 11, and releasing said releasing means.

" 2.-In a typewriting machine, the combination with a platen, a pressure roll to run thereon, and a platen frame, of a finger lever pivoted uponthe platen frame and having an; arm, a second lever having a cam edge engageable by said arm, the latter rotatable .to a position to lock the arm in abnormal positi'o'n, an ear formed upon said cam arm, a link pivoted to said ear, and a roll-releasing rock-shaft having a crank to which is pivoted the other end of said link.

3. In a typewriting machine, thecombination with a platen frame, a platen and releasable rollers running thereon, of means to release and lock the rollers out of engage ment with the platen, comprising a rockshaft, a lever pivoted upon the platen frame I having a cam edge pivoted upon the platen and engaging with a cam edge on a second frame and connected to the rock-shaft, and lever also pivotednpon the platen frame and l a finger lever also pivoted upon the platen connected to the rock shaft, and means opframe and having an arm engaging with '15 erated by the latter to release the rollers. the cam edge on the first named lever, to re-' 4. In a typewriting machine provided With lease and look the rollers out of engagement a platen and a platen frame, the combination with the platen. with pressure rollers to run upon the platen, l RANK vV. SICKLES. of a rod supporting splin -pressed roller- Witnesses: I carrying arms, a. rook-shaft having cams W. M. DYoRKMAN, thereon engaging with said arms, a lever i MORTON C. TALCOTT. 

